DISTANCE MEASUREMENT METHOD AND DISTANCE MEASUREMENT APPARATUS

• Main Authors: DING, Genming, HE, Yanong
• Format: Patent
• Language: English; French; German
• Published: 18.01.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

A distance measurement method and apparatus (100) are provided. The method includes: receiving a plurality of first echo signals generated within a detection range by a plurality of first radar signals transmitted in a first time segment (S210); determining a first point cloud dataset based on the plurality of first echo signals (S220); performing denoising on the first point cloud dataset based on a signal-to-noise ratio value and a rate value that are in each piece of first point cloud data included in the first point cloud dataset, to obtain a target dataset (S230), where noise and rates at obstacle points in different motion statuses are different; clustering, based on a distance value in each piece of first point cloud data included in the target dataset, first point cloud data included in the target dataset, to obtain at least one classification, where the at least one classification corresponds to at least one obstacle (S240); and determining a distance between an obstacle corresponding to each classification and a transmitting origin based on a distance value in each piece of first point cloud data included in each of the at least one classification (S250). The distance measurement method and apparatus (100) can improve accuracy of distance measurement.